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Remarks on central extensions of the Galilei group in 2+1 dimensions

Y. Brihaye·S. Giller·C. Gonera·P. Kosinski
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Abstract

Some properties of central extensions of 2+1 dimensional Galilei group are discussed. It is shown that certain families of extensions are isomorphic. An interpretation of new nontrivial cocycle is offered. A few bibliographical remarks are included.

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Y. Brihaye, S. Giller, C. Gonera, P. Kosinski. 1995-08-28. Remarks on central extensions of the Galilei group in 2+1 dimensions. https://arxiv.org/abs/q-alg/9508020

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